Radiating car-truck.



A. F. H. HEAD.

RADIATING CAR TRUCK. APPLICATION FILED FEB. 15. 1917 3 SHEETS-SHEET I.

A. F. H. HEAD.

RADIATING CAR TRUCK.

APPLICATION FILED FEB-15,1917.

3 SHEETS SHEET 3.

awvemfoz "UN @TATEiQa PATENT ARTHUR F. H. HEAD, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE 3'. G.

BRILL COMPANY, OF PHILADELPHIA, PENN SYLVANIA, A CORPORATION OF PENN- SYLVANIA.

RADIATING GAR-TRUCK.

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Application filed February 15, 1917.

To all whom it may concern:

Be it known that I, ARTHUR F. H. HEAD, a subject of the King of Great'Britain, and a resident of the city and county of Philadelphia and State of Pennsylvania, have invented a new and useful Improvement in Radiating Car-Trucks, of which the following is a specification.

The object of my invention is to provide a new form of truck with radiating axles and also to provide a new and more rigid method of supporting the motors and brake mechanism in this character of truck, and especially in those trucks in which the motor is used to form the connection between the axle and king bolt about which the axles and other parts radiate. This and other objects are accomplished by my invention, one embodiment of which is hereinafter more particularly set forth.

For a more particular description of my invention, reference is to be had to the accompanying drawings, forming apart hereof, in which:

Figure 1 is a plan view of a portion of my improved truck with parts broken away to more clearly reveal the structure.

Fig. 2 is a side elevation of my improved truck.

Fig. 3 is a longitudinal section of one end of the same.

F ig. 4 is a plan View of one portion of a crossing and parts of the braces connected therewith.

Fig. 5 is a sectional view of parts shown in Fig. 1.

Figs. 6 and 7 are diagrammatic views illustrating the action of the truck links.

Throughout the various views of the drawings, similar reference characters designate similar parts.

My improved truck 1, is provided with side frames 2, which are connected by pairs of crossings 3 spaced apart and secured to the side frames by brackets 3 and braced by braces 4, which are fastened by bolts 5 to the side frames. The two pairs of crossings are secured together by means of tie rods 6 which extend through the sides of bushings 22, placed between the crossing 3, and serve to hold them in their proper position. These tie rods are located at each side of the middle of the truck and close to its median plane and secure, unite and brace the crossings 3 at thelr centers.

Specification of Letters Patent.

Patented July to, 1917.

Serial No. 148,790.

The truck 1, is carried on suitable wheels 7, which are fixed to their respective axles 8, 1n the conventional manner, and the axles have journal boxes 9, mounted thereon which flexibly support the side frames 2 by any sultable means which will allow the axles to radiate and I have illustrated one form of mechanism although it is obvious that the same may be varied in many particular respects. The journal boxes 9 are provided with laterally extending spring seats 10, that carry the coil springs 11. that are surmounted by caps 12, with semispherical seats and central perforations, so that these caps may carry the upper ends of correspondingly shaped links 18, which run through the spring seats 10, springs 11, and caps 12, and have their lower ends below the level of the axle boxes 9, so as to reach the lower yokes 1 1, which have corresponding openings and twin bolts 15, so as to support the frames 2, from the yokes 14.. The bolts 15 pass through holes 13 in the lower ends of the links 13, and these holes 13 are slotted or elongated, so that the link may as sum-e an angular instead of a perpendicular position when the axles radiate on a curve. It will be clearly understood that when the link leaves its perpendicular position, one of the bolts 15 will only rest in the bottom of the slotted hole 13 through which it passes and the bottom of the other slotted hole will drop away from the corresponding bolt 15 and as a result only one of the two bolts 15 will carry the load on the link 13 which is normally supported by both. The foregoing is clearly illustrated in Figs. 6 and 7. The bolts 15, run perpendicular to the flattened ends of the links 13, and these flattened ends are placed so as to be perpendicular to radial lines drawn from the center of the king bolt 16. This king bolt 16, is pressed into or is otherwise rigidly fixed into a yoke or motor support 17 mounted on the king bolt 16 and turning thereon, and its lower portion passes through the bushing 22 and is kept from lifting by means of a flange held in place by the bolt 16 or any other suitable means.

The king bolt and axles are connected by means of the yoke 17, mounted on the king bolt and turning free thereon and fixed to the bar 18, by bolts 19, or in any other suitable way. Each cross-bar 18, is fixed to the motor casing 20, by suitable bolts 21, and

the motor casing 20, is sleeved on the axle 8, in the conventional manner so as to cause said axle to swing about the king bolt to which it is connected as above described.

The brake rigging may be of the conventional form although I prefer the type disclosed in Fig. 1 of the drawings, consisting essentially of two brake shoes 29 at each end of the truck preferably connected by an inside hung brake beam. A lever 30 is pivoted in the center of the truck and push rods 31 extend between the ends of this lever and the brake beams. Retracting springs 32 extend between the lever 30 and crossings in the truck frame. I

The car body, not shown, is carried from the frame 2, by means of semi-elliptic springs 23, located near each end of each frame and mounted in the usual manner, and coil springs 21, and these springs preferably have a common cap 25. For convenience, :the caps 25 are guided by the yokes 26, which are above the lower yokes 11, as shown. Additional coil springs 27, with caps 28, further carry the load upon the truck 1. It will thus be seen that the car body is carried both by coil and leaf springs which prevent any undue rocking.

In view of the foregoing, the operation of my improved truck will be readily understood. It will be noted that bar 18 and motor support 17, being rigidly bolted together and to the motor, form avery strong and rigid attachment for the king bolt, that the pairs of crossings 3 cannot be twisted by the weight of the motor and that the tendency for the-axles to spread apart when the brakes are applied is transmitted to the king bolts and absorbed by the tie rods '6. Then running on a straight track, the axles remain parallel, in the conventional manner. hen the truck takes a curve, the wheels first entering on the curve cause a swinging of the corresponding axle 8, about its pivot or king bolt 16, and thereby displace the links 13, so that one of the bolts 15, at the bottom of the link, carries the load and thereby produces an uneven distortion of the coil spring 11, to which it is connected and an elevating of the car body which continues until the curve is passed, when the weight of the car body and the resiliency of the springs restores equilibrium,

and brings the links back to their normal positions, when the load is carried by all embodiment of my invention, it is obvious that it is not restricted thereto, but is broad enough to cover all structures which come within the scope of the annexed claims.

that I claim is.:

1. In a truck of the class described, an axle, wheels on said axle, axleboxes on said axle, side frames supported flexibly by said axle boxes, a pair of crossing-s connecting said side frames, a bushing between said crossings, a motor sleeved on said axle, a bar bolted to said motor, brake shoes hung from ends of said bar, a motor support bolted to said bar, a king bolt fixed to said motor support and projecting downwardly through said bushi ng.

"2. In a truck of the class described, side frames, pairs of crossings connecting said side frames, bushings supported bygsaid' crossings, and longitudinally disposed .tie rods passing through said crossings and said bushings.

'3. In a truck of the class described, aking bolt, a bushing surrounding the lower end of the same, crossing and bracing bolts securing said bushing, a yoke anounted on said king belt, a car :axle and means connecting said yoke with this iaxle,

4. Ina truck of the class described, a king bolt, a bushing in which said king bolt is mounted, crossings, braces :and Elongitudt na'l bolts for holding said bushing .in place, an axle and means connecting king bolt and axle.

5. In a truck of the class desoribedfside frames connected by crossings, longitudinal bolts connecting said crossings and braces connecting said longitudinal bolts, crossings and side frames. I p

6. In a truck of the class described, a "king bolt and means for mounting the same, a

car axle, an electric motor casing mounted on said axle, :a bar mounted on :said casing, a yoke connected to said king bolt and connecting said bar and king bolt.

Signed at the city and county of Philadelphia, State of Pennsylvania, this 12th day of February, 1917. p p

' ARTHUR F. H. HEAD.

Copies of this patent may be obtained for five cents each, :byaddress'i-ng the Commissioner of Patents,

Washington, 11:0. 7 r 

